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2.4.2.The bottom of the anchor points must be 15 inches above the 2.5.2.Clean debris from the top of the tank rib marked with the top of the slab and positioned the distance from the tank centerline arrowhead symbols ®®. that is shown in TABLE 2-1 2.5.3.Lift the strap with the hook end down and the hook facing Note:The straps provided will not work unless the proper ele- away from the tank.(See FIGURE 2-4.) vation for anchorp oints is maintained. Galvanl,ed&ap- Alurnl= Galvanad end connre r�stsapguide emphook� Nominal Tank Diameter Nominal distance between tank centerline and anchor point(and tolerance) 8' 55"(±3 inches) MOHstrap 10' 72" ±3 inches �J TABLE 2-1 FIGURE 2-4 t t between the tank and the 2.5.4.Lower he hook end of he strap be ee 2.4.3.Place 12 inches of level backfill over the slab. anchor point,and hook the strap to the anchor point. 2.4.4.When setting the tank,make sure that the marked arrowhead 2.5.5.On one end of the threaded rod,put a washer and a blind nut symbols►®on the tank are aligned with the anchor points on the (acorn nut). anchor slab. 2.5.6.Feed the rod through the hole in the strap-end connector. (See FIGURE 2-5.) 2.5.Installing Man-Out-Of-Hole Straps 2.5.1. Each load binder assembly consist of the items shown in 2.5.7.On the other end of the threaded rad,put a washer and a nut. FIGURE 2-3 and TABLE 2-2. 2.5.8.Center the wear plate on the top center line of the marked ribs. 2.5.9.Lower the threaded rod,washer and nut into the channel section on the strap-end connector,taking care to place the washer and nut on 5\3 s 4 2 1. the outside of the connector.(See FIGURE 2-5.) 7 2_ 4 3 3\5 I I _.._ ._.. _ F431 -. . } Add blind nut and washer here Add nut and washer here -- 6 Note:The numbers above correlate to item numbers in TABLE 2-2. FIGURE 2.5 FIGURE 2.3 2.5.10.Hand-tighten the nuts. 2.5.11.Repeat POINTS 2.5.5,2.5.6,2.5.7,2.5.9 and 2.5.10 for the Load Binder Assembly Parts List second rod of the assembly. 2.5.12.After the two threaded rods are placed,tighten the threaded rods, Item Quantity Description using a torque wrench to lighten to 25-30 foot-pounds,or until snug. 2.5.13.Repeat POINTS 2.5.2 to 2.5.12 for each of the load binder 1 2 MOH Hold-down strap assemblies. 2 2 - 518"-diameter threaded rod ® CAUTION 3 4 518"washer When tightening straps,do not cause deflection of more 4 2 518"nuts than 3/16-inch to the tank diameter. 2.5.14.Tank deflection should be checked by taking the tank diame- 5 2 518"blind nuts(acorn nuts) ter before and after tightening straps as explained in the Deflection 6 1 1 Wear plate Measurement Section of the Installation Manual 2.5.15.All exposed metal on the anchoring system must be coated TABLE 2-2 with a corrosion-protection material.Previously coated metal that Note:Some contractors prefer to perforin Points 2.5.5 through 2.5.7 has been damaged must be recoated. outside the tank excavation before moving the strap to the tank. 25.16.Continue installing the tank according to the Installation Manual.